#277B90#277B90

#277B90 is a mid, moderate cyan. Relative luminance 0.166; OKLCH L 54.3% C 0.084 H 218.1°. Best body text is #FFFFFF at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#277B90
RGB	rgb(39, 123, 144)
HSL	hsl(192, 57%, 36%)
HSV	hsv(192, 73%, 56%)
CMYK	cmyk(72.9%, 14.6%, 0%, 43.5%)
CIE-LAB	lab(47.76, -17.55, -18.60)
CIE-LCH	lch(47.76, 25.57, 226.66°)
OKLab	oklab(54.27% -0.0662 -0.0519)
OKLCH	oklch(54.27% 0.084 218.1)
XYZ	xyz(12.9516, 16.6094, 28.9035)
Luminance	0.1661 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277B90 #903C27

analogous

#279070 #277B90 #274690

triadic

#277B90 #90277B #7B9027

tetradic

#277B90 #702790 #903C27 #469027

square

#277B90 #702790 #903C27 #469027

split-complementary

#277B90 #902746 #907027

monochromatic

#0D2930 #1A5260 #277B90 #34A4C0 #5EBCD3

Accessibility & contrast

On white

4.86

#277B90 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.32

#277B90 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #277B90

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277B90	#FFFFFF	#000000	##FFFFFF
##277B90	1.00	4.86	4.32	4.86
#FFFFFF	4.86	1.00	21.00	1.00
#000000	4.32	21.00	1.00	21.00
##FFFFFF	4.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E7791

Deuteranopia (green-blind)

#5F6D90

Tritanopia (blue-blind)

#008282

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #277b90;
/* rgb */ color: rgb(39, 123, 144);
/* oklch */ color: oklch(54.3% 0.084 218.1);

Tailwind

colors: {
  custom: {
    50: '#71a1b0',
    500: '#277b90',
    950: '#000000',
  },
}

SCSS

$custom: #277b90;
$custom-light: #71a1b0;
$custom-dark: #000000;

JSON

{
  "hex": "#277b90",
  "rgb": {
    "r": 39,
    "g": 123,
    "b": 144
  },
  "hsl": {
    "h": 192,
    "s": 57.377,
    "l": 35.882
  },
  "oklch": {
    "l": 0.54266,
    "c": 0.08414,
    "h": 218.1
  },
  "luminance": 0.16611
}

Semantic roles & 50–950 ramp

primary

#277B90

secondary

#B96D5A

accent

#6647E1

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#090F10

muted

#7B7E7F

Preview Lab

Preview with #277B90

Body copy rendered with the generated semantic roles for this colour.

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